[Mono-bugs] [Bug 36545][Nor] New - Embedding: Invoking a constructor fails

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Changed by alp@atoker.com.

http://bugzilla.ximian.com/show_bug.cgi?id=36545

--- shadow/36545	Thu Jan  9 16:25:06 2003
+++ shadow/36545.tmp.16014	Thu Jan  9 16:25:06 2003
@@ -0,0 +1,91 @@
+Bug#: 36545
+Product: Mono/Runtime
+Version: unspecified
+OS: 
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Normal
+Component: misc
+AssignedTo: lupus@ximian.com                            
+ReportedBy: alp@atoker.com               
+QAContact: mono-bugs@ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: Embedding: Invoking a constructor fails
+
+Attempting to invoke the .ctor method of a class using mono_runtime_invoke
+fails. In the provided test case, invoking a static method in the class
+works, but invoking the constructor does not:
+
+$ mcs --target library Test.cs
+$ gcc `pkg-config --cflags --libs glib-2.0 mono` -lpthread test.c -o test
+$ ./test
+static c# method
+** (process:6326): WARNING **: Exception insinde function without unwind info
+** ERROR **: file exception.c: line 850 (arch_handle_exception): should not
+be reached
+aborting...
+Trace/breakpoint trap
+
+
+
+Test.cs:
+
+namespace Demo
+{
+        using System;
+
+        public class Test
+        {
+                public Test ()
+                {
+                        Console.WriteLine ("ctor");
+                }
+
+                public static void StatMethod ()
+                {
+                        Console.WriteLine ("static c# method");
+                }
+        }
+}
+
+test.c:
+
+#include <glib.h>
+#include <mono/metadata/object.h>
+
+int main () {
+
+  typedef struct MonoMethodDesc MonoMethodDesc;
+  MonoDomain *domain;
+  MonoAssembly *assembly;
+  MonoClass *test_class;
+  MonoMethodDesc *desc;
+  MonoMethod *meth;
+
+  domain = mono_jit_init ("demo");
+  assembly = mono_domain_assembly_open (domain, "Test.dll");
+  if (!assembly) g_error ("bad assembly: %s", "Test.dll");
+
+  test_class = mono_class_from_name (assembly->image, "Demo", "Test");
+  mono_class_init (test_class);
+
+  //invoke static method - it works
+  desc = mono_method_desc_new (":StatMethod()", 0);
+  if (desc == 0) g_error ("no such desc");
+  meth = mono_method_desc_search_in_class (desc, test_class);
+  if (meth == 0) g_error ("no such meth");
+  mono_runtime_invoke (meth, 0, 0, 0);
+
+  //invoke constructor - it fails
+  desc = mono_method_desc_new (":.ctor()", 0);
+  if (desc == 0) g_error ("no such desc");
+  meth = mono_method_desc_search_in_class (desc, test_class);
+  if (meth == 0) g_error ("no such meth");
+  mono_runtime_invoke (meth, 0, 0, 0);
+
+  return 0;
+}